# include <stdio.h>
# include <stdlib.h>
# include <time.h>

# include "ppc_array.h"
# include "ppc_random_pbm.h"

int main ( );
void timestamp ( );

/******************************************************************************/

int main ( )

/******************************************************************************/
/*
  Purpose:

    ppc_random_pbm_test() tests ppc_random_pbm().

  Licensing:

    This code is distributed under the MIT license. 

  Modified:

    08 September 2023

  Author:

    John Burkardt
*/
{
  double f;
  char *filename = "ppc_random.pbm";
  char **M;
  int m;
  int n;
  unsigned int s;

  timestamp ( );
  printf ( "\n" );
  printf ( "ppc_random_pbm_test():\n" );
  printf ( "  C version\n" );
  printf ( "  Test ppc_random_pbm().\n" );

  s = 123456789;
  srand ( s );

  m = 8;
  n = 5;
  f = 0.25;
  M = make_random_matrix ( m, n, f );

  printf ( "\n" );
  printf ( "  Random PBM matrix:\n" );
  printf ( "\n" );
  print_matrix ( "%d", M, m, n );

  printf ( "\n" );
  printf ( "  Write matrix to PBM file:\n" );
  printf ( "\n" );
  write_pbm ( M, m, n, filename );

  free_matrix ( M );
/*
  Terminate.
*/
  printf ( "\n" );
  printf ( "ppc_random_pbm_test():\n" );
  printf ( "  Normal end of execution.\n" );
  printf ( "\n" );
  timestamp ( );

  return 0;
}
/******************************************************************************/

void timestamp ( )

/******************************************************************************/
/*
  Purpose:

    timestamp() prints the current YMDHMS date as a time stamp.

  Example:

    17 June 2014 09:45:54 AM

  Licensing:

    This code is distributed under the MIT license. 

  Modified:

    17 June 2014

  Author:

    John Burkardt
*/
{
# define TIME_SIZE 40

  static char time_buffer[TIME_SIZE];
  const struct tm *tm;
  time_t now;

  now = time ( NULL );
  tm = localtime ( &now );

  strftime ( time_buffer, TIME_SIZE, "%d %B %Y %I:%M:%S %p", tm );

  printf ( "%s\n", time_buffer );

  return;
# undef TIME_SIZE
}